Study
29 And God said, Behold, I have given you every herb bearing seed, which is upon the face of all the earth, and every tree, in the which is the fruit of a tree yielding seed; to you it shall be for meat.
6 By the word of the LORD were the heavens made; and all the host of them by the breath of his mouth.
'Three' denotes fullness, and 'a third,' not full.
(References: Arcana Coelestia 2788 [1-13])